Fastening for bars, &amp;c.



A. C. DOBRICK.

FASTENING FOR BARS, 6L0.

APPLICATION FILED APR.8, 1915.

1,145,471. Patented July 6, 1915.

UNI TED STATES PATENT curios.

AUGUST C. DOBRICKb OF CHICAGO, ILLINOIS, ASSIGNOR TO THE IMPERIAL BRASS MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FASTENING FOR BARS, 8w.

Specification of Letters Patent.

Application filed April 8, 1915. Serial N 0. 20,064.

To all whom it may concern:

Be it known that I, AUGUST C. DOBRICK, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Fastenings for Bars, &c., of which the following is a full, clear, and exact specification.

My invention is concerned with combined grab and push bars, and similar devices, for doors, and is designed to produce devices of the class described that shall be provided with substantially invisible fastening devices by which they can be readily secured in place. These bars are fastened at both ends, and as they cannot be rotated in fastening them into place, such invisible fastenings as have been heretofore employed on similar devices that can be rotated in securing them in place, cannot be employed on these bars for this reason.

To illustrate my invention, I annex hereto 'a sheet of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which,-

Figure 1 is a perspective view showing my invention as applied to a door; Fig. 2 is a perspective view of one of the bars detached; Fig. 3 is a vertical, central longitudinal section through the door and adjacent ends of the bar, showing the details of the connections; and Fig. t is a perspective view of a wrench that may be employed in securing the fastenings in place.

A combined grab and push bar, for which my invention is particularly designed, is usually applied to a door a, and ordinarily consists of a pair of barsb and 0 having inturned and enlarged disk-llke ends d, which are secured against the door a by the fastening to be described. These bars on the outwardly opening side of the door are customarily connected by a grab handle 6. The same form of bar may be employed on the opposite side of the door, if it swings both ways, but if it swings one way, the bars 7 on the other side are usually separated, one of them being shown in perspective in Fig. 2, and it will be obvious that four apertures 9 must be made through the door so that the ends d of the bars I) and 0 will oppose the corresponding ends of the bars 1'' on the opposite side of the door. To form an invisible fastening for these bars, by

which they can be readily secured in place on the doors, is the object of my present invention, and to this end I form a threaded aperture h in the ends of the bars 6 and c, and I employ a rotatable disk 6, which is preferably of the same dimensions as the enlarged ends (Z of the bars I) and 0, and provlded on its periphery with some suitable means for turning it, such as one or more recesses 7' adapted to be engaged by the wrench shown in Fig. 4. This disk 71 contains at its center an angular aperture is, with which cooperates the angular portion 1 of the bolt m passing therethrough, so that as the disk i is turned, the bolt will be compelled to rotate therewith. The ends of the bars 7'' are preferably internally threaded, as

shown, and after the bolt m has had its head n thrustinto the end of the bar 7, the externally-threaded nut 0 having the central aperture is placed over the bolt m and screwed into place by using a spanner wrench in the apertures 79 formed in the face of the nut. The bars f are then placed with their ends opposite the apertures g, and the bolts m are passed through the disks 2', into engagement with the threaded apertures h of the bars 6 and c, and by rotating the disks 2', the parts can be drawn together as shown in Fig. 8. Of course it will be understood that this particular style of fastening does not have to be applied to both ends of the bars I), o and f, but that one end of the bars 7 might be provided with bolts secured therein in the customary manner and turned into place by rotating the bars 7 about that end as a center, provided the surroundings will permit. When these ends are secured, however, the other ends must be provided with the fastenings shown, or similar fastenings, so that the parts can be drawn togetherwith the bars 6, c and j held in their horizontal position.

While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and that Ido not desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

1. In a device of the class described, the combination with a supporting member having a pair of apertures therethrough, of a bar having its ends abutting against the supporting member on one side thereof and over the apertures therein, one of said ends being internally threaded, a second bar having its ends opposed to the ends of the first bar on the other side of the supporting member, a rotatable disk interposed between the end of the second bar and the supporting member opposed to the internally-threaded end oi the other bar and having an angular aperture therein, said disk being provided with means for rotating it, an externally-threaded nut screwed into the end of the second bar adjacent the disk, a bolt passing through the nut and disk and screwed into the threaded opposed end of the first bar and having its head engaging the nut, and having an angular portion cooperating with the angular aperture of the disk, for the purpose described, and means for connecting the other ends of the bars through their associated apertures.

2. In a device of the class described, the combination with a supporting member having a pair of apertures therethrough, of a bar having its ends abutting against the supporting member on one side of the apertures therein, one of said ends being internally threaded, a second bar having its ends opposed to the ends of the first bar on the other side of the supporting member, a rotatable disk interposed between the end of the second bar and the supporting member opposed to the internally-threaded end of the first bar and having an angular aperture therein, said disk being provided with means for rotating it, an abutment in the end of the second bar adjacent the disk, a bolt having 1ts head engaging the abutment screwed into the threaded opposed end .a bar having its ends abutting against the supporting member on one side over the apertures therein, one of said ends being in ternally threaded, a second bar having its ends opposed to the ends of the first bar on the other side of the supporting member, a rotatable element interposed between the end of the second bar and the supporting element opposed to the internally-threaded end of the first bar, a bolt having its head secured to rotate in the end of the second bar and adapted to be screwed into the threaded end of the first bar, connections between the bolt and rotatable element to compel them to rotate in unison, means to rotate the element, and means for connecting the other ends of the bars through their associated apertures.

In witness whereof I have hereunto set my hand and affixed my seal, this 2nd, day of April, A. D. 1915.

AUGUST C. DOBRICK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

